function drawVisualization() {
  // Create and populate the data table.
  var data = google.visualization.arrayToDataTable([
    ['Task', 'Hours per Day'],
    ['Work',        11],
    ['Eat',         2],
    ['Commute',     2],
    ['Watch TV',    2],
    ['Sleep',       7]
  ]);

  // Create and draw the visualization.
  new google.visualization.ImagePieChart(document.getElementById('visualization')).
      draw(data, null);
}
